SEPARATOR FOR SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Title:

SEPARATOR FOR SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Document Type and Number:

WIPO Patent Application WO/2018/212566

Kind Code:

A1

Abstract:

The present invention relates to a separator for a secondary battery and a lithium secondary battery comprising the separator, the separator comprising: a porous substrate and a heat-resistant layer disposed on at least one surface of the porous substrate, wherein the heat-resistant layer contains an acrylic heat-resistant binder, an adhering binder, and a filler, the acrylic heat-resistant binder comprising a structural unit induced from (meth)acrylate or (meth)acrylic acid, a cyano group-containing structural unit, and a sulfonate group-containing structural unit, the adhering binder comprising a structural unit comprising a hydroxyl group, a structural unit comprising an acetate group, and a structural unit comprising an alkali metal.

Inventors:

KO CHANGHONG (KR)
SEO DONGWAN (KR)
CHOI HYEONSUN (KR)
CHOI ICKKYU (KR)
PARK JUNGJOON (KR)
PARK JINKYU (KR)
PARK SAM-JIN (KR)
KIM YANGSEOB (KR)

Application Number:

PCT/KR2018/005568

Publication Date:

November 22, 2018

Filing Date:

May 15, 2018

Export Citation:

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Assignee:

SAMSUNG SDI CO LTD (KR)

International Classes:

C08J7/043; C09D7/61; H01M10/0525; H01M50/403; H01M50/406; H01M50/417; H01M50/42; H01M50/423; H01M50/426; H01M50/451

Foreign References:

KR20140044757A	2014-04-15
JPH06172725A	1994-06-21
JPH0263788A	1990-03-05
KR20120097238A	2012-09-03
US4574110A	1986-03-04

Other References: